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NetApp Knowledge Base

A Linux client creates additional mount points when accessing the .snapshot directory via NFS

Views:
3,782
Visibility:
Public
Votes:
1
Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Clustered Data ONTAP
  • Linux kernel 2.6.18 and later versions

Issue

  • Modern Linux clients identifies the .snapshot directory as a different filesystem, and thus as a different mount point.
  • When the snapshot is deleted, clients report 'stale file handle' for .snapshot based sub-mounts
  • 'mount' command on the Linux host displays a large number of snapshots mounted and not able to be unmounted.

1.1.1.1:/some_export/cluster/.snapshot/hourly.2015-08-03_0705 on /some-mount/.snapshot/hourly.2015-08-03_0705 type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=sys,mountproto=,local_lock=none,addr=10.1.100.101)

 

 

 

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